| Project/Area Number |
08045046
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | University-to-University Cooperative Research |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | Nnagaoka National College of Technology |
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Principal Investigator |
SATOW Kazuhide Nagaoka College of Technology, Civil Engineering, Professor, 環境都市工学科, 教授 (80113398)
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| Co-Investigator(Kenkyū-buntansha) |
TANAKA Kazuhiro Nagaoka College of Technology, Civil Engineering, Asst., 環境都市工学科, 助手 (40259841)
YOSHIDA Shigeru Nagaoka College of Technology, Civil Engineering, Asst. Professor, 環境都市工学科, 助教授 (60042769)
YAMAGUCHI Hajime Nagaoka College of Technology, Liberal Arts-Physics, Professor, 一般教育科, 教授 (00042747)
王 穎 黒龍江水利高等専科学校, 工学部, 講師
丁 琳 黒龍江水利高等専科学校, 工学部, 講師
WANR Ying Heilongjiang Hydraulic College, Civil Engineering, Asst. Professor
DING Lin Heilongjiang Hydraulic College, Civil Engineering, Asst. Professor
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| Project Period (FY) |
1996 – 1998
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| Keywords | China / Daxinganling / hydrology / acid snow / organohalides / water environment |
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| Research Abstract |
The northeastern part of China is very cold and few in precipitation , especially in winter . There are two big rivers : Heilogjiang River and Songhaujiang River . Under Quick economic developments , problems on water , snow and ice have occurred in this region . In this circumstances , a joint project was carried out on water environments and the following results were obtained:
At Xinlin in Daxinganling region , automatic recorders of river water level , precipitation and air temperature set up and some important hydrologic date were obtained near Huma River , a branch of Heilogjiang River.
Hydrologic features are as follows : main runoff from April to September are due to precipitation and not to snow melting . High water level was recorded in summer of 1998 , when extraordinary floods occurred in Songhaujiang River .
Snow accumulation in winter is very low as compared with that in Japan . Chemical characteristics in precipitation at Xinlin are different from that of Nagaoka.
Form the analysis of or ganohalides in tap water , the quality level at Harbin City is under reference level in Japan .
A few of hydrological and meteorological date were collected in Xinlin area , but it has been more difficult to continue to collect such date because there exists many politic and economic problems in China.
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